Test with the DSS Demo-CD from link below. Burn the ISO image on to CD then boot system with Demo-CD to see if the motherboard NIC's are supported. Also you can still setup the system and use the Demo-CD if a replacement is needed and remove the Demo-CD and use the new DSS module and your data will be intact.

http://www.open-e.com/account/login/.../account/demo/

If we need to RMA the DSS please provide all information (SN#, name and address) so that we can process a replacement.